Table 2.
Effects of dietary treatments on weight gain, feed intake and feed conversion ratio (FCR) in broiler chickensa4.
| Item | Treatments |
SEM8 | P-value | |||
|---|---|---|---|---|---|---|
| Control | XG5 | XG + P6 | XG + A7 | |||
| Weight gain, g/(bird·d) | ||||||
| d 1 to 14 | 32.05 | 32.23 | 32.93 | 34.01 | 0.56 | 0.61 |
| d 15 to 21 | 60.76 | 61.31 | 61.81 | 60.26 | 0.43 | 0.62 |
| d 22 to 28 | 91.15 | 91.31 | 93.80 | 94.76 | 0.62 | 0.13 |
| d 29 to 35 | 97.71 | 100.00 | 97.31 | 103.23 | 1.73 | 0.62 |
| d 1 to 35 | 70.00 | 71.13 | 71.38 | 72.75 | 0.67 | 0.57 |
| Feed intake, g/(bird·d) | ||||||
| d 1 to 14 | 48.79 | 49.54 | 48.39 | 49.79 | 0.59 | 0.83 |
| d 15 to 21 | 93.42 | 93.93 | 92.17 | 93.19 | 0.77 | 0.88 |
| d 22 to 28 | 150.56 | 146.50 | 147.68 | 148.90 | 0.94 | 0.48 |
| d 29 to 35 | 194.981 | 187.321,2 | 183.462 | 186.321,2 | 1.71 | 0.04 |
| d 1 to 35 | 121.94 | 119.32 | 117.93 | 119.55 | 0.87 | 0.45 |
| FCR | ||||||
| d 1 to 14 | 1.52 | 1.54 | 1.47 | 1.46 | 0.01 | 0.10 |
| d 15 to 21 | 1.54 | 1.53 | 1.49 | 1.54 | 0.008 | 0.13 |
| d 22 to 28 | 1.651 | 1.602 | 1.572 | 1.572 | 0.007 | 0.001 |
| d 29 to 35 | 1.991 | 1.871,2 | 1.901,2 | 1.802 | 0.02 | 0.02 |
| d 1 to 35 | 1.741 | 1.672 | 1.652,3 | 1.643 | 0.006 | 0.005 |
1, 2, 3 Means not sharing the same superscripts are significantly different (P < 0.05).
4
Data represent the mean of 6 replicate pens of 10 broiler chickens per pen.
5
XG = xylanase and β-glucanase (100 g/t; Natugrain, BASF, Germany).
6
P = phytase (100 g/t; Phyzyme XP 5000, Danisco Animal Nutrition, UK).
7
A = acidifier (3,000 g/t; BioAcid Ultra, Biochem, Germany).
8
SEM = standard error of the mean.